On Tue, Apr 22, 2008 at 01:17:42PM -0300, Leandro Casadei wrote:
> Hi, I need to update a field from a table based in a count.
> 
> This is the query:

I don't know why your given query doesn't work, but you could simplify
it which may help.

> update    shops
> set    itemsqty =
>     (
>     select     count(*)
>     from     items i1
>     where  i1.shopid = s0.shopid
>     )
> from     shops s0

Have a nice day,
-- 
Martijn van Oosterhout   <[EMAIL PROTECTED]>   http://svana.org/kleptog/
> Please line up in a tree and maintain the heap invariant while 
> boarding. Thank you for flying nlogn airlines.

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